Adjustable outlet-gate for ventilatinq-pipes



(N0 Modl.)

- J. MOOREERY.

ADJUSTABLE OUTLET GATE FOR VENTILATING PIPES.

Patented Dec. 29, 1896.

JOSEPH M COREERY,

Parent V OF TOLEDO, OHIO.

ADJUSTABLE OUTLET-GATE FOR VENTILATlNG- -PIPES.

- SPECIFICATION forming part of Letters Patent No. 574,104, datedDecember 29, 1896.

I Application filed June 20, 1896.

To 'aZZ whom it may concern:

Be it known that I, JOSEPH MCCREERY, a citizen of the United States,residing at T- ledo, in the county of Lucas and State of Ohio, haveinvented certain new and useful Improvements in Adjustable Outlet-Gatesfor Ventilating-Pipes; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to an improvement in the outlets of pipes usedfor ventilating.

- ring is upturned, as

'3, a section on line 3 3,"

The object of the invention is to produce an outlet from which the airmay be emitted at varying angles and in different directions.

The invention consists in the construction In the drawings, Figurel'represents a face View of the device; Fig. 2, a side view; Fig. Fig.1; Fig. 4, a detailed sectional View on line a: as, Fig. 2.

In the drawings the letter A indicates a ring by which the outlet isfirmly secured to theventilating-pipe. The outer end a of this shown,forming a lip.

. Securedto the ring A, a little distance from may be made'angular, asshown.

projects loosely through a hole this lip a, is a band a, which has anupturned lip a parallel with the lip a,.there being a space a between.In this space a is loosely held the edge I) of the outlet-cap B. Thiscap Within the cap is the valve-frame O, in which are hinged the leavesD,forming the valve. These leaves are arranged like Venetian blinds,their pintles being pivoted in the sides 0 cof the frame 0. At one side,just outside of the frame, the ends of the leaves are connected by a rod0, so that all the leaves inay be turned by moving one of them. At oneside, between. the wall of the cap B and the side of the frame 0, thereis a recess or pocket I). In this pocket is placed a plate-spring E. Oneend e of this spring E bears against the inner side of the pocket. Theother end e'has a point 6 which in the cap B. One of the leaves D has aswell d, in which is held the inner end f of ahandle F, which passes outof thecap and has secured on its outer end a nut G. This nut G has onits inner face anumber of depressions The position of the spring E andthe handle F is such that when the parts are all in place thedepressions 9 will engage the point e .air not only of Serial No.596,297. (No'modeL) Q The leaves are turned upon their pintles As thenut G is.

by operating the handle F. turned the point c When the nut is at thepoint (2 into one of the depressions g, and thus holds theleaves at anygiven point. When the leaves lie closely against each other, as shown inFig. 1, they form an effective air-gate, and no air can be forcedthrough the outlet. By turning the leaves at different anglesvarying'amounts of air are forced out, As the cap D is loosely held tothe ring A the cap may be turned axially about the ring. The axialrotation of the cap throws the leaves into varying positions. Thesevarying positions of the leaves about the plane of rotation and thevarying angles of opening of the leaves produce streams of is pressedinwardly, and

ing angles; and when many of these outlets are used in the sameapartment the air may be admitted into the apartment in streams whichvary in their angles to one another.

Having thus described my invention, what I claim is-- 1. An outletoluble cap, ing of several leaves, whereby the opening 111 the outletmay be placed in different positions and be of different sizes, as setforth.

2. The combination of the axially-revoluble cap, and the valve-frame insuch cap provided with the leaves, whereby the opening in the outlet maybe placed in different pos1- tions and be of difierent sizes, as setforth.

3. The combination of the ring with the aXially-revoluble cap upon suchring, and a valve in such cap,consisting of several leaves, whereby theopening in the outlet may be placed in different positions and be ofdifferent sizes, as set forth.

provided with an axially-rev- 4. The combination of the cap, B, thevalve. frame, 0; the leaves, D, held in such frame; the spring, E,between the cap and frame and having the point, e projecting through ahole in the cap; and the handle, F, thenut, G, of which is provided withthe depressions, g, as set forth.

rest the spring E forces varying amount, but at varyand a valve in suchcap, consist- In testimony whereof affix my signature 1n presence oftwo. witnesses.

JOSEPH MGCREERY. f Witnesses:

S. BRASHEARS, J12, "W. H. SINGLETON.

